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Interaction between the atmospheric boundary layer and a standalone wind turbine in Gansu-Part I: Field measurement
Li DS; Guo T; Li YR; Hu JS; Zheng Z; Li Y; Di YJ; Hu WR(胡文瑞); Li RN
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2018-09-01
Volume61Issue:9Pages:94711
ISSN1674-7348
Abstract

Experiments and numerical simulations of the wake field behind a horizontal-axis wind turbine are carried out to investigate the interaction between the atmospheric boundary layer and a stand-alone wind turbine. The tested wind turbine (33 kW) has a rotor diameter of 14.8 m and hub height of 15.4 m. An anti-icing digital Sonic wind meter, an atmospheric pressure sensor, and a temperature and humidity sensor are installed in the upstream wind measurement mast. Wake velocity is measured by three US CSAT3 ultrasonic anemometers. To reflect the characteristics of the whole flow field, numerical simulations are performed through large eddy simulation (LES) and with the actuator line model. The experimental results show that the axial velocity deficit rate ranges from 32.18% to 63.22% at the three measuring points. Meanwhile, the time-frequency characteristics of the axial velocities at the left and right measuring points are different. Moreover, the average axial and lateral velocity deficit of the right measuring point is greater than that of the left measuring point. The turbulent kinetic energy (TKE) at the middle and right measuring points exhibit a periodic variation, and the vortex sheet-pass frequency is mostly similar to the rotational frequency of the rotor. However, this feature is not obvious for the left measuring point. Meanwhile, the power spectra of the vertical velocity fluctuation show the slope of -1, and those of lateral and axial velocity fluctuations show slopes of -1 and -5/3, respectively. However, the inertial subranges of axial velocity fluctuation at the left, middle, and right measuring points occur at 4, 7, and 7 Hz, respectively. The above conclusion fully illustrates the asymmetry of the left and right measuring points. The experimental data and numerical simulation results collectively indicate that the wake is deflected to the right under the influence of lateral force. Therefore, wake asymmetry can be mainly attributed to the lateral force exerted by the wind turbine on the fluid.

Keywordwind power atmospheric turbulence effects velocity measurements turbulent wakes large-eddy simulations
DOI10.1007/s11433-018-9219-y
URL查看原文
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000437173700008
WOS KeywordLARGE-EDDY SIMULATION ; YAWED FLOW CONDITIONS ; HORIZONTAL-AXIS ; WAKE AERODYNAMICS ; MODEL ; FLOWFIELD ; ROTOR ; HAWT ; TIP
WOS Research AreaPhysics, Multidisciplinary
WOS SubjectPhysics
Funding OrganizationNational Basic Research Program of China [2014CB046201] ; National Natural Science Foundation of China [51766009, 51566011, 51465033, 51479114] ; Thousand Talents Program [NSFC-RCUK_EPSRC] ; Platform Construction of Ocean Energy Comprehensive Supporting Service [GHME2014ZC01] ; High-tech Ship Research Projects - MIITC Floating Support Platform Project [201622] ; State Key Laboratory of Ocean Engineering at Shanghai Jiao Tong University
CSCD IDCSCD:6343214
Classification二类/Q1
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77943
Collection国家微重力实验室
Affiliation1.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
2.Gansu Prov Technol Ctr Wind Turbines, Lanzhou 730050, Gansu, Peoples R China
3.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
4.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China
5.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China
6.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China
7.Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li DS,Guo T,Li YR,et al. Interaction between the atmospheric boundary layer and a standalone wind turbine in Gansu-Part I: Field measurement[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2018,61(9):94711.
APA Li DS.,Guo T.,Li YR.,Hu JS.,Zheng Z.,...&Li RN.(2018).Interaction between the atmospheric boundary layer and a standalone wind turbine in Gansu-Part I: Field measurement.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,61(9),94711.
MLA Li DS,et al."Interaction between the atmospheric boundary layer and a standalone wind turbine in Gansu-Part I: Field measurement".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 61.9(2018):94711.
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